app.yaml

name: Application CI/CD
on:
  push:
    branches:
      - 'main'

jobs:
  push_to_registry:
    name: Push Image to GCP
    runs-on: ubuntu-latest
    if: "!contains(github.event.head_commit.message, 'skip docker') && !contains(github.event.head_commit.message, 'docker skip')"
    steps:
      - uses: actions/checkout@v2

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Authenticate to Google Cloud
        uses: google-github-actions/auth@v1
        with:
          credentials_json: ${{ secrets.SERVICE_ACCOUNT_KEY }}

      - name: Set up Cloud SDK
        uses: google-github-actions/setup-gcloud@v1
        with:
          version: 418

      - name: Auth to GCloud Docker
        shell: bash
        run: |
          gcloud auth configure-docker us-east4-docker.pkg.dev

      - name: Cache Docker layers
        uses: actions/cache@v2
        with:
          path: /tmp/.buildx-cache
          key: buildx-${{ github.sha }}
          restore-keys: |
            buildx-

      - name: Generate build tag
        env:
          SHA: ${{ github.sha }}
        run: |
          echo "BUILD_TAG=${GITHUB_SHA:0:7}-$(date +%Y%m%d-%H%M%S)" >> $GITHUB_ENV

      - name: Build Image
        id: build-image
        uses: docker/build-push-action@v3
        with:
          context: .
          tags: |
            "${{ vars.REGISTRY_HOSTNAME }}development/${{ vars.IMAGE }}:${{ env.BUILD_TAG }}"
            "${{ vars.REGISTRY_HOSTNAME }}development/${{ vars.IMAGE }}:latest"
            "${{ vars.REGISTRY_HOSTNAME }}prod/${{ vars.IMAGE }}:${{ env.BUILD_TAG }}"
            "${{ vars.REGISTRY_HOSTNAME }}prod/${{ vars.IMAGE }}:latest"
          build-args: |
            VERSION=${{ env.BUILD_TAG }}
          push: true
          cache-from: type=local,src=/tmp/.buildx-cache
          cache-to: type=local,dest=/tmp/.buildx-cache-new

      - name: Move cache
        run: |
          rm -rf /tmp/.buildx-cache
          mv /tmp/.buildx-cache-new /tmp/.buildx-cache